{
  "url": "https://dantelabs.com/traits/hypoplastic-thumbnail",
  "trait": {
    "bundleId": "2026.10.17-8666dff2",
    "release": "2026-09-01",
    "slug": "hypoplastic-thumbnail",
    "id": "HP:0012553",
    "name": "Small thumbnail",
    "label": "Hypoplastic thumbnail",
    "definition": "A thumbnail that is diminished in length and width, i.e., underdeveloped thumb nail.",
    "synonyms": [
      "Underdeveloped thumbnail"
    ],
    "systems": [
      {
        "slug": "abnormality-of-the-integument",
        "name": "Abnormality of the integument",
        "url": "https://dantelabs.com/traits/abnormality-of-the-integument"
      }
    ],
    "broader": [
      {
        "slug": "hypoplastic-fingernail",
        "name": "Small fingernail",
        "url": "https://dantelabs.com/traits/hypoplastic-fingernail"
      }
    ],
    "narrower": [],
    "genes": [
      {
        "slug": "pigf",
        "symbol": "PIGF",
        "hgnc": "HGNC:8962",
        "name": "phosphatidylinositol glycan anchor biosynthesis class F",
        "frequency": "obligate",
        "diseases": 1,
        "url": "https://dantelabs.com/genes/pigf"
      },
      {
        "slug": "kcnh1",
        "symbol": "KCNH1",
        "hgnc": "HGNC:6250",
        "name": "potassium voltage-gated channel subfamily H member 1",
        "frequency": "frequent",
        "diseases": 2,
        "url": "https://dantelabs.com/genes/kcnh1"
      }
    ]
  }
}